History log of /external/clang/lib/CodeGen/ItaniumCXXABI.cpp
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
bb1b797d2e432293563747bd9704b22cf0787061 04-Aug-2013 Timur Iskhodzhanov <timurrrr@google.com> Emit the constructor for abstract classes when using -cxx-abi microsoft, fixes PR16735

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
21fe45076c371e9a9f27e15c4e068e77a185fe62 24-Jul-2013 Mark Seaborn <mseaborn@chromium.org> Use ARM-style representation for C++ method pointers under PNaCl/Emscripten

Before this change, Clang uses the x86 representation for C++ method
pointers when generating code for PNaCl. However, the resulting code
will assume that function pointers are 0 mod 2. This assumption is
not safe for PNaCl, where function pointers could have any value
(especially in future sandboxing models).

So, switch to using the ARM representation for PNaCl code, which makes
no assumptions about the alignment of function pointers.

Since we're changing the "le32" target, this change also applies to
Emscripten. The change is beneficial for Emscripten too. Emscripten
has a workaround to make function pointers 0 mod 2. This change would
allow the workaround to be removed.

See: https://code.google.com/p/nativeclient/issues/detail?id=3450

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187051 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
a4130baad9d10b7feabb7e003da53424e986d269 22-Jul-2013 Reid Kleckner <reid@kleckner.net> [ms-cxxabi] Emit linkonce complete dtors in TUs that need them

Based on Peter Collingbourne's destructor patches.

Prior to this change, clang was considering ?1 to be the complete
destructor and the base destructor, which was wrong. This lead to
crashes when clang tried to emit two LLVM functions with the same name.

In this ABI, TUs with non-inline dtors might not emit a complete
destructor. They are emitted as inline thunks in TUs that need them,
and they always delegate to the base dtors of the complete class and its
virtual bases. This change uses the DeferredDecls machinery to emit
complete dtors as needed.

Currently in clang try body destructors can catch exceptions thrown by
virtual base destructors. In the Microsoft C++ ABI, clang may not have
the destructor definition, in which case clang won't wrap the virtual
virtual base destructor calls in a try-catch. Diagnosing this in user
code is TODO.

Finally, for classes that don't use virtual inheritance, MSVC always
calls the base destructor (?1) directly. This is a useful code size
optimization that avoids emitting lots of extra thunks or aliases.
Implementing it also means our existing tests continue to pass, and is
consistent with MSVC's output.

We can do the same for Itanium by tweaking GetAddrOfCXXDestructor, but
it will require further testing.

Reviewers: rjmccall

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1066

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
6e007f9fa0b9ebe5898025010c5ebc7d82decfa7 19-Jul-2013 Timur Iskhodzhanov <timurrrr@google.com> Simplify the CodeGenFunction::Build*Virtual*Call family of functions

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186657 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
3b50e8d78c34fc57e25781015a2cb0536ca54f89 30-Jun-2013 Stephen Lin <stephenwlin@gmail.com> Restore r184205 and associated commits (after commit of r185290)

This allows clang to use the backend parameter attribute 'returned' when generating 'this'-returning constructors and destructors in ARM and MSVC C++ ABIs.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
e1e35f761970fd662696b803a839c1f4a56f61b2 28-Jun-2013 Peter Collingbourne <peter@pcc.me.uk> [ms-cxxabi] Move CodeGenVTables::needsVTTParameter to ItaniumCXXABI.

This function only makes sense there. Eventually it should no longer
be part of the CGCXXABI interface, as it is an Itanium-specific detail.

Differential Revision: http://llvm-reviews.chandlerc.com/D821

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
3258abc2bad74e8bb1799d124bc4113c7234fa42 20-Jun-2013 Stephen Lin <stephenwlin@gmail.com> Revert r184205 and associated patches while investigating issue with broken buildbot (possible interaction with LTO)

<rdar://problem/14209661>


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
4444dbbb96ba55ff8a05a1918627f609a387db9f 19-Jun-2013 Stephen Lin <stephenwlin@gmail.com> Corrections to r184205 ('this'-return optimization) due to the wrong version of the patch being committed originally.
1) Removed useless return value of CGCXXABI::EmitConstructorCall and CGCXXABI::EmitVirtualDestructorCall and implementations
2) Corrected last portion of CodeGenCXX/constructor-destructor-return-this to correctly test for non-'this'-return of virtual destructor calls


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
9063302a82423cb83f002257a416741850739a70 19-Jun-2013 Reid Kleckner <reid@kleckner.net> [ms-cxxabi] Emit and install appropriately mangled vbtables

In Itanium, dynamic classes have one vtable with several different
address points for dynamic base classes that can't share vtables.

In the MS C++ ABI, each vbtable that can't be shared gets its own
symbol, similar to how ctor vtables work in Itanium. However, instead
of mangling the subobject offset into the symbol, the unique portions of
the inheritance path are mangled into the symbol to make it unique.

This patch implements the MSVC 2012 scheme for forming unique vbtable
symbol names. MSVC 2010 use the same mangling with a different subset
of the path. Implementing that mangling and possibly others is TODO.

Each vbtable is an array of i32 offsets from the vbptr that points to it
to another virtual base subobject. The first entry of a vbtable always
points to the base of the current subobject, implying that it is the
same no matter which parent class contains it.

Reviewers: rjmccall

Differential Revision: http://llvm-reviews.chandlerc.com/D636

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
d4c0cd07641681de6ed12164aa7a4495ab4b18e5 18-Jun-2013 Stephen Lin <stephenwlin@gmail.com> CodeGen: Have 'this'-returning constructors and destructors to take advantage of the new backend 'returned' attribute.

The backend will now use the generic 'returned' attribute to form tail calls where possible, as well as avoid save-restores of 'this' in some cases (specifically the cases that matter for the ARM C++ ABI).

This patch also reverts a prior front-end only partial implementation of these optimizations, since it's no longer required.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
b0f533e716ae5a21ca5682ea235a68082fd5ed28 29-May-2013 Reid Kleckner <reid@kleckner.net> [ms-cxxabi] Implement MSVC virtual base adjustment

While we can't yet emit vbtables, this allows us to find virtual bases
of objects constructed in other TUs.

This make iostream hello world work, since basic_ostream virtually
inherits from basic_ios.

Differential Revision: http://llvm-reviews.chandlerc.com/D795

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f632730ffb0b8ca531a35e737b29cc9f9774ca1d 09-May-2013 Reid Kleckner <reid@kleckner.net> [ms-cxxabi] Implement member pointer conversions

Summary:
This only supports converting along non-virtual inheritance paths by
changing the field offset or the non-virtual base adjustment.

This implements three kinds of conversions:
- codegen for Value conversions
- Constant emission for APValue
- Constant folding for CastExprs

In almost all constant initialization settings
EmitMemberPointer(APValue) is called, except when the expression
contains a reinterpret cast.

reinterpret casts end up being a big corner case because the null value
changes between different kinds of member pointers.

Reviewers: rsmith

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D741

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
4e3b54b4acb4dd926ca50d7f06c8265d1d24ba79 02-May-2013 Bill Wendling <isanbard@gmail.com> Use the Itanium ABI for thread_local on Darwin.

After some discussion, it was decided to use the Itanium ABI for thread_local on
Darwin OS X platforms. This involved a couple of changes. First, we use
"_tlv_atexit" instead of "__cxa_thread_atexit". Secondly, the global variables
are marked with 'internal' linkage, because we want all access to be calls to
the Itanium-specific entry point, which has normal linkage.
<rdar://problem/13733006>


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
b80a16eadd0dacabfc1c32412e243ccb99dd664d 19-Apr-2013 Richard Smith <richard-llvm@metafoo.co.uk> Implement CodeGen for C++11 thread_local, following the Itanium ABI specification as discussed on cxx-abi-dev.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
ed23bdf69dd63e4fd01c02b12a13d1e6cbff9c2f 17-Apr-2013 Timur Iskhodzhanov <timurrrr@google.com> Set SRet flags properly in '-cxx-abi microsoft'.

Also,
- abstract out the indirect/in memory/in registers decisions into the CGCXXABI
- fix handling of empty struct arguments for '-cxx-abi microsoft'
- add/fix tests



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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
64aa4b3ec7e62288e2e66c1935487ece995ca94b 17-Apr-2013 John McCall <rjmccall@apple.com> Standardize accesses to the TargetInfo in IR-gen.

Patch by Stephen Lin!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179638 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
04e517650569598e847c2ab609672e6df93effe5 15-Apr-2013 Richard Smith <richard-llvm@metafoo.co.uk> CodeGen support for function-local static thread_local variables with
non-constant constructors or non-trivial destructors. Plus bugfixes for
thread_local references bound to temporaries (the temporaries themselves are
lifetime-extended to become thread_local), and the corresponding case for
std::initializer_list.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179496 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
92e44d911c748f2ef0d578bbf7b0703fb2ed4d9c 22-Mar-2013 Reid Kleckner <reid@kleckner.net> [cxxabi] Get ptrdiff_t from the CodeGenModule instead of caching it

As the comment says, it's a little silly to cache it in the ABI code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177738 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
63fd408a61ae9b94e8d8a986832f526f7cdbfa84 20-Mar-2013 Manman Ren <mren@apple.com> Exploit this-return of a callsite in a this-return function.

For constructors/desctructors that return 'this', if there exists a callsite
that returns 'this' and is immediately before the return instruction, make
sure we are using the return value from the callsite.

We don't need to keep 'this' alive through the callsite. It also enables
optimizations in the backend, such as tail call optimization.

Updated from r177211.
rdar://12818789


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
7cd84baa533ae337e3eb6b7951d94ce94093d521 16-Mar-2013 Manman Ren <mren@apple.com> revert r177211 due to its potential issues

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177222 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
2710ed8fd997be04ff447b8be2190f8fb34ac22b 16-Mar-2013 Manman Ren <mren@apple.com> Exploit this-return of a callsite in a this-return function.

For constructors/desctructors that return 'this', if there exists a callsite
that returns 'this' and is immediately before the return instruction, make
sure we are using the return value from the callsite.

We don't need to keep 'this' alive through the callsite. It also enables
optimizations in the backend, such as tail call optimization.

rdar://12818789


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
bd7370a78604e9a20d698bfe328c1e43f12a0613 28-Feb-2013 John McCall <rjmccall@apple.com> Use the actual ABI-determined C calling convention for runtime
calls and declarations.

LLVM has a default CC determined by the target triple. This is
not always the actual default CC for the ABI we've been asked to
target, and so we sometimes find ourselves annotating all user
functions with an explicit calling convention. Since these
calling conventions usually agree for the simple set of argument
types passed to most runtime functions, using the LLVM-default CC
in principle has no effect. However, the LLVM optimizer goes
into histrionics if it sees this kind of formal CC mismatch,
since it has no concept of CC compatibility. Therefore, if this
module happens to define the "runtime" function, or got LTO'ed
with such a definition, we can miscompile; so it's quite
important to get this right.

Defining runtime functions locally is quite common in embedded
applications.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
1d4fff5551c2347010b955b4337a2aa7d65a050e 27-Feb-2013 Timur Iskhodzhanov <timurrrr@google.com> Better support for constructors with -cxx-abi microsoft, partly fixes PR12784

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176186 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
0f9827f5d6248d7008063768eb5f2c3e6ba83e94 15-Feb-2013 Timur Iskhodzhanov <timurrrr@google.com> Abstract out emitting the vdtor calls and do it properly when using -cxx-abi microsoft; also fix vdtor calls for the ARM ABI

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
c264e16a42b3f6c36521857a29ea0949d9781c22 31-Jan-2013 Tim Northover <Tim.Northover@arm.com> Add support for AArch64 target.

In cooperation with the LLVM patch, this should implement all scalar front-end
parts of the C and C++ ABIs for AArch64.

This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.

Further reviews would be gratefully received.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
c4c62fd78a4728c9e4d4df14911a2ced9bdd2031 31-Jan-2013 Bill Wendling <isanbard@gmail.com> Make sure that the Attribute object represents one attribute only.

Several places were still treating the Attribute object as respresenting
multiple attributes. Those places now use the AttributeSet to represent
multiple attributes.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f3bbb155beb69cdad1c6b0472bc0ca20cece6c50 26-Jan-2013 John McCall <rjmccall@apple.com> ARM says that the array cookie should always be eight bytes.
ARM is not thinking about over-aligned structures.
Overrule ARM in both our generic-ARM and iOS ABI implementations.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
96fcde0b8ed8bdf99d326312ca7be6447b0fe5fc 26-Jan-2013 John McCall <rjmccall@apple.com> Move the decision about the kind of CGCXXABI to make inside
the family-specific files.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
d5617eeafc93209a26b9f88276c88cf997c3a0a7 25-Jan-2013 John McCall <rjmccall@apple.com> The standard ARM C++ ABI dictates that inline functions are
never key functions. We did not implement that rule for the
iOS ABI, which was driven by what was implemented in gcc-4.2.
However, implement it now for other ARM-based platforms.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
3b844ba7d5be205a9b4f5f0b0d1b7978977f4b8c 02-Jan-2013 Chandler Carruth <chandlerc@gmail.com> Rewrite #includes for llvm/Foo.h to llvm/IR/Foo.h as appropriate to
reflect the migration in r171366.

Re-sort the #include lines to reflect the new paths.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
72390b39c545426023ec104afe8706395d732bad 20-Dec-2012 Bill Wendling <isanbard@gmail.com> Rename llvm::Attributes to llvm::Attribute.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
ad017fa7a4df7389d245d02a49b3c79ed70bedb9 20-Dec-2012 Bill Wendling <isanbard@gmail.com> Revert r170500. It over-zealously converted *ALL* things named Attributes, which is wrong here.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170721 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
094dbf917127a1228147587076d59ca45b7c258d 19-Dec-2012 Bill Wendling <isanbard@gmail.com> Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170500 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
55fc873017f10f6f566b182b70f6fc22aefa3464 04-Dec-2012 Chandler Carruth <chandlerc@gmail.com> Sort all of Clang's files under 'lib', and fix up the broken headers
uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
7edf9e38b91917b661277601c0e448eef0eb2b56 01-Nov-2012 Richard Smith <richard-llvm@metafoo.co.uk> Simplify: replace getContext().getLangOpts() with just getLangOpts().


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
956a5a17713deb1b5b27893303c4f308a1bd2a62 25-Oct-2012 Micah Villmow <villmow@gmail.com> Cleanup some clang code to use new type functions instead of using cast<>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166684 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
2eb9a959d24ad757a82ecab61f343635ad67749a 17-Oct-2012 David Blaikie <dblaikie@gmail.com> PR13684: Emit vtable entries for deleted functions as __cxa_deleted_function.

This is consistent/interoperable with GCC 4.7 (& __cxa_deleted_function isn't
present in 4.4 - not sure when it got added, but you'll need something with
that function available for this to work).

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
a6375560645177168099f1a1d96be8fa4718aa8e 16-Oct-2012 Bill Wendling <isanbard@gmail.com> Use the Attributes::get method which takes an AttrVal value directly to simplify the code a bit. No functionality change.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
0d5833921cc728bc1d2e45fbaf7b3e11cddbf99d 15-Oct-2012 Bill Wendling <isanbard@gmail.com> Move the Attributes::Builder outside of the Attributes class and into its own class named AttrBuilder. No functionality change.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
50e6b18f99c45b31e6216ab221f6b3911b24fa1f 15-Oct-2012 Bill Wendling <isanbard@gmail.com> Attributes Rewrite

Convert the uses of the Attributes class over to the new format. The
Attributes::get method call now takes an LLVM context so that the attributes
object can be uniquified and stored.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
603571a2d6daca43162bf1d9469baf919697c00a 10-Oct-2012 Bill Wendling <isanbard@gmail.com> Remove the final bits of Attributes being declared in the Attribute
namespace. Use the attribute's enum value instead. No functionality change
intended.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
25a6a84cf5067b32c271e3ba078676dee838798d 08-Oct-2012 Micah Villmow <villmow@gmail.com> Move TargetData to DataLayout.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165395 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
ecd03b447bb0e2ed1954c77441d49a4a17ca8138 25-Sep-2012 John McCall <rjmccall@apple.com> When performing a ::delete of an object with a virtual destructor,
be sure to delete the complete object pointer, not the original
pointer. This is necessary if the base being deleted is at a
non-zero offset in the complete object. This is only required
for objects with virtual destructors because deleting an object
via a base-class subobject when the base does not have a virtual
destructor is undefined behavior.

Noticed while reviewing the last four years of cxx-abi-dev
activity.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164597 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
ba77cb9c82cc9d498e4d6474d128007249f07871 15-Sep-2012 Craig Topper <craig.topper@gmail.com> Fix includes of llvm and clang files that used angle brackets.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163980 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
285baac67d722beb6854f5faa45ee1aa62a7ce92 17-Jul-2012 Joao Matos <ripzonetriton@gmail.com> [Windows] Abstract pure virtual method calls in the ABI. Fix the Windows ABI to forward to the correct function.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160373 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
9ee494f98610dcd79441dce469d7bf609fcd7b92 24-Jun-2012 Charles Davis <cdavis@mines.edu> IRGen: Factor v-table generation into the CGCXXABI object.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159091 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
20bb175cb8ae5844034828db094fb948c0e3454a 01-May-2012 John McCall <rjmccall@apple.com> Abstract the emission of global destructors into ABI-specific code
and only consider using __cxa_atexit in the Itanium logic. The
default logic is to use atexit().

Emit "guarded" initializers in Microsoft mode unconditionally.
This is definitely not correct, but it's closer to correct than
just not emitting the initializer.

Based on a patch by Timur Iskhodzhanov!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155894 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
e2b45e2a43ae46bc00026b63ba7c04ef2b78c3ff 01-May-2012 John McCall <rjmccall@apple.com> Refactor the C++ ABI code a little bit to take advantage of
what I'm going to treat as basically universal properties of
array-cookie code. Implement MS array cookies on top of that.
Based on a patch by Timur Iskhodzhanov!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155886 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
355bba72ca52c4a70ca3c3802412c03a6ec31f24 30-Mar-2012 John McCall <rjmccall@apple.com> Make sure we unique static-local decls across multiple emissions of
the function body, but do so in a way that doesn't make any assumptions
about the static local actually having a proper, unique mangling,
since apparently we don't do that correctly at all.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153776 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
0f30a12ce7b3d4d86c9ca9072f587da77c8eef34 30-Mar-2012 Chandler Carruth <chandlerc@gmail.com> Revert r153723, and its follow-ups r153728 and r153733.

These patches cause us to miscompile and/or reject code with static
function-local variables in an extern-C context. Previously, we were
papering over this as long as the variables are within the same
translation unit, and had not seen any failures in the wild. We still
need a proper fix, which involves mangling static locals inside of an
extern-C block (as GCC already does), but this patch causes pretty
widespread regressions. Firefox, and many other applications no longer
build.

Lots of test cases have been posted to the list in response to this
commit, so there should be no problem reproducing the issues.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153768 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
49d26d2817180ccde605c987f79cd3a5b57639cd 30-Mar-2012 John McCall <rjmccall@apple.com> Do the static-locals thing properly in the face of unions and
other things which might mess with the variable's type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153733 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
26945addf1660d2c54af7be57bc9adb7ccc50a24 30-Mar-2012 NAKAMURA Takumi <geek4civic@gmail.com> ItaniumCXXABI.cpp: Don't use nullptr. Clang source tree should be pre-c++11-compatible.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153728 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
9993cc7b56b6bcb73914d707eb3afb29c2f85db8 30-Mar-2012 John McCall <rjmccall@apple.com> When emitting a static local variable in C++, handle
the case that the variable already exists. Partly this is just
protection against people making crazy declarations with custom
asm labels or extern "C" names that intentionally collide with
the manglings of such variables, but the main reason is that we
can actually emit a static local variable twice with the
requirement that it match up. There may be other cases with
(e.g.) the various nested functions, but the main exemplar is
with constructor variants, where we can be forced into
double-emitting the function body under certain circumstances
like (currently) the presence of virtual bases.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153723 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
4e4d08403ca5cfd4d558fa2936215d3a4e5a528d 11-Mar-2012 David Blaikie <dblaikie@gmail.com> Unify naming of LangOptions variable/get function across the Clang stack (Lex to AST).

The member variable is always "LangOpts" and the member function is always "getLangOpts".

Reviewed by Chris Lattner

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
de5d3c717684f3821b8db58037bc7140acf134aa 17-Feb-2012 John McCall <rjmccall@apple.com> Whether an argument is required (in contrast with being an
optional argument passed through the variadic ellipsis)
potentially affects how we need to lower it. Propagate
this information down to the various getFunctionInfo(...)
overloads on CodeGenTypes. Furthermore, rename those
overloads to clarify their distinct purposes, and make
sure we're calling the right one in the right place.
This has a nice side-effect of making it easier to construct
a function type, since the 'variadic' bit is no longer
separable.

This shouldn't really change anything for our existing
platforms, with one minor exception --- we should now call
variadic ObjC methods with the ... in the "right place"
(see the test case), which I guess matters for anyone
running GNUStep on MIPS. Mostly it's just a substantial
clean-up.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150788 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
4d4e5c1ae83f4510caa486b3ad19de13048f9f04 15-Feb-2012 John McCall <rjmccall@apple.com> Split reinterpret_casts of member pointers out from CK_BitCast; this
is general goodness because representations of member pointers are
not always equivalent across member pointer types on all ABIs
(even though this isn't really standard-endorsed).

Take advantage of the new information to teach IR-generation how
to do these reinterprets in constant initializers. Make sure this
works when intermingled with hierarchy conversions (although
this is not part of our motivating use case). Doing this in the
constant-evaluator would probably have been better, but that would
require a *lot* of extra structure in the representation of
constant member pointers: you'd really have to track an arbitrary
chain of hierarchy conversions and reinterpretations in order to
get this right. Ultimately, this seems less complex. I also
wasn't quite sure how to extend the constant evaluator to handle
foldings that we don't actually want to treat as extended
constant expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150551 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
e76872e81ea32fbc863d8d7ef6eadc91a8f8673b 14-Feb-2012 Nick Lewycky <nicholas@mxc.ca> Mark the cxa_guard_{abort,acquire,release} functions nounwind.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150435 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
7ca4850a3e3530fa6c93b64b740446e32c97f992 13-Feb-2012 Richard Smith <richard-llvm@metafoo.co.uk> Deal with a horrible C++11 special case. If a non-literal type has a constexpr
constructor, and that constructor is used to initialize an object of static
storage duration such that all members and bases are initialized by constant
expressions, constant initialization is performed. In this case, the object
can still have a non-trivial destructor, and if it does, we must emit a dynamic
initializer which performs no initialization and instead simply registers that
destructor.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150419 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
cec5ebd4a6a89a7023d04cec728fd340b541ed61 11-Feb-2012 Eli Friedman <eli.friedman@gmail.com> Basic support for referring to captured variables from lambdas. Some simple examples seem to work. Tests coming up soon.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150293 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
8b418685e9e4f02f4eb2a76e1ec063e07552b68d 07-Feb-2012 Chris Lattner <sabre@nondot.org> simplify a bunch of code to use the well-known LLVM IR types computed by CodeGenModule.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149943 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f7ccbad5d9949e7ddd1cbef43d482553b811e026 05-Feb-2012 Dylan Noblesmith <nobled@dreamwidth.org> Basic: import SmallString<> into clang namespace

(I was going to fix the TODO about DenseMap too, but
that would break self-host right now. See PR11922.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
e7aa62de659049428976052eadf69188eae64170 17-Jan-2012 Richard Smith <richard-llvm@metafoo.co.uk> Remove constant member pointer support from Expr-based constant emission now
that APValue-based constant emission knows how to emit member pointers.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148336 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
2d6a5670465cb3f1d811695a9f23e372508240d2 14-Jan-2012 Richard Smith <richard-llvm@metafoo.co.uk> constexpr irgen: Add irgen support for APValue::Struct, APValue::Union,
APValue::Array and APValue::MemberPointer. All APValue values can now be emitted
as constants.

Add new CGCXXABI entry point for emitting an APValue MemberPointer. The other
entrypoints dealing with constant member pointers are no longer necessary and
will be removed in a later change.

Switch codegen from using EvaluateAsRValue/EvaluateAsLValue to
VarDecl::evaluateValue. This performs caching and deals with the nasty cases in
C++11 where a non-const object's initializer can refer indirectly to
previously-initialized fields within the same object.

Building the intermediate APValue object incurs a measurable performance hit on
pathological testcases with huge initializer lists, so we continue to build IR
directly from the Expr nodes for array and record types outside of C++11.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148178 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
578faa837b552403e2002b97fdfbfde14f2448e5 27-Sep-2011 Benjamin Kramer <benny.kra@googlemail.com> de-tmpify clang.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140637 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
1d2b31710539d705a3850c9fc3aa1804c2a5efee 26-Sep-2011 Peter Collingbourne <peter@pcc.me.uk> Create a VTableContext class and start moving CodeGenVTables methods to it

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140502 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
eb43f4a8f133c2bc510ae136a556e92b68a6ff44 14-Sep-2011 Eli Friedman <eli.friedman@gmail.com> Re-commit r139643.

Make clang use Acquire loads and Release stores where necessary.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139650 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
a179b531f4728b91291bfbf639ddf71ed7db810a 14-Sep-2011 Eli Friedman <eli.friedman@gmail.com> Revert r139643 while I look into it; it's breaking selfhost.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139648 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
93013b235680b184be3cda150bcd6456944415f4 13-Sep-2011 Eli Friedman <eli.friedman@gmail.com> Make clang use Acquire loads and Release stores where necessary.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139643 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
bcfd1f55bfbb3e5944cd5e03d07b343e280838c4 02-Sep-2011 Douglas Gregor <dgregor@apple.com> Extend the ASTContext constructor to delay the initialization of
builtin types (When requested). This is another step toward making
ASTUnit build the ASTContext as needed when loading an AST file,
rather than doing so after the fact. No actual functionality change (yet).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
da549e8995c447542d5631b8b67fcc3a9582797a 29-Jul-2011 Jay Foad <jay.foad@gmail.com> Remove some unnecessary single element array temporaries.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136461 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
91873b72bf01b7170f80154f3118300ff2eacd34 27-Jul-2011 Eli Friedman <eli.friedman@gmail.com> Make CodeGen for array delete involving incomplete class work without crashing. Should fix regression on g++.dg/init/delete1.C.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136241 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
5f9e272e632e951b1efe824cd16acb4d96077930 23-Jul-2011 Chris Lattner <sabre@nondot.org> remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
2acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2d 18-Jul-2011 Chris Lattner <sabre@nondot.org> de-constify llvm::Type, patch by David Blaikie!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135370 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
ad346f4f678ab1c3222425641d851dc63e9dfa1a 12-Jul-2011 John McCall <rjmccall@apple.com> Generalize Cleanup::Emit's "isForEH" parameter into a set
of flags. No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134997 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f742eb0196e1b25c0b71e91da4a2b856d16a1dab 10-Jul-2011 Chris Lattner <sabre@nondot.org> Rename CGT::VerifyFuncTypeComplete to isFuncTypeConvertible since
it is a predicate, not an action. Change the return type to be a bool,
not the incomplete member. Enhace it to detect the recursive compilation
case, allowing us to compile Eli's testcase on llvmdev:

struct T {
struct T (*p)(void);
} t;

into:

%struct.T = type { {}* }

@t = common global %struct.T zeroinitializer, align 8




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134853 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
9cbe4f0ba01ec304e1e3d071c071f7bca33631c0 09-Jul-2011 Chris Lattner <sabre@nondot.org> clang side to match the LLVM IR type system rewrite patch.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134831 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
c5cbb909e8a27deb8f1a2b6b7bf56a96051af81a 20-Jun-2011 Chris Lattner <sabre@nondot.org> Update to match mainline ConstantStruct::get API change. Also, use
ConvertType on InitListExprs as they are being converted. This is
needed for a forthcoming patch, and improves the IR generated anyway
(see additional type names in testcases).

This patch also converts a bunch of std::vector's in CGObjCMac to use
C arrays. There are a ton more that should be converted as well.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133413 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
7650d95a1a616ea300f37126a8dfc93dc19a662a 19-Jun-2011 Chris Lattner <sabre@nondot.org> update for api change.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133365 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
0502a224984a26087ea4d64e8e5d2dd4dca432f6 17-Jun-2011 John McCall <rjmccall@apple.com> Perform an acquire memory barrier on the fast path of a thread-safe
static initializer check, as required by the Itanium ABI.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133250 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f85e193739c953358c865005855253af4f68a497 16-Jun-2011 John McCall <rjmccall@apple.com> Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
95d318c4c10437db40ca6e15fdf32e04012da58e 28-May-2011 Benjamin Kramer <benny.kra@googlemail.com> Eliminate temporary argument vectors.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132260 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
28ff4d640493dab5323d035a69730f9951d65ca1 02-May-2011 Nick Lewycky <nicholas@mxc.ca> Remove dead variable flagged by gcc's -Wunused-but-set-variable. No
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130673 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
173d51286bcaff4b6b76eebf6542d3b1311142e2 27-Apr-2011 Anders Carlsson <andersca@mac.com> When compiling with -fno-threadsafe-statics, guard variables for globals with internal linkage don't have to be i64, i8 works just fine!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130286 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
db27b5fb2d7fc50b8962b2c95e4d43b90c69b1f0 20-Apr-2011 Daniel Dunbar <daniel@zuster.org> IRgen/ARM: Fix a think-o in conversion-to-null for member function pointers, we
were computing the conversion as (ptr != 0 && non-virtual), when it should be
(ptr != 0 || is-virtual).
- Test to follow in LLVM test-suite.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129830 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
fc8f0e14ad142ed811e90fbd9a30e419e301c717 15-Apr-2011 Chris Lattner <sabre@nondot.org> fix a bunch of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129559 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
755d8497e39071aa24acc173ff07083e3256b8f8 12-Apr-2011 John McCall <rjmccall@apple.com> After some discussion with Doug, we decided that it made a lot more sense
for __unknown_anytype resolution to destructively modify the AST. So that's
what it does now, which significantly simplifies some of the implementation.
Normal member calls work pretty cleanly now, and I added support for
propagating unknown-ness through &.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129331 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
379b5155b4566f63679e1da6b0ceb5fdfa2aec6d 11-Apr-2011 John McCall <rjmccall@apple.com> More __unknown_anytype work.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129269 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
1246ba6f6801390ffc0e1d4b83a2b45e72283b8f 09-Apr-2011 Ken Dyck <kd@kendyck.com> Convert the PointerWidthInBytes variable in EmitMemberPointer() to CharUnits
to eliminate a divide-by-8. No change in functionality intended.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129180 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
bbf3bacb3e0c1ebb3e8a4a8b1330404a7e379315 30-Mar-2011 Jay Foad <jay.foad@gmail.com> Remove PHINode::reserveOperandSpace(). Instead, add a parameter to
PHINode::Create() giving the (known or expected) number of operands.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128538 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
d26bc76c98006609002d9930f8840490e88ac5b5 09-Mar-2011 John McCall <rjmccall@apple.com> Use the "undergoes default argument promotion" bit on parameters to
simplify the logic of initializing function parameters so that we don't need
both a variable declaration and a type in FunctionArgList. This also means
that we need to propagate the CGFunctionInfo down in a lot of places rather
than recalculating it from the FAL. There's more we can do to eliminate
redundancy here, and I've left FIXMEs behind to do it.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127314 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f0be979bddb8baa28e77693a3dc931e487b2a9f2 11-Feb-2011 Rafael Espindola <rafael.espindola@gmail.com> For consistency, use llvm::raw_ostream in the rest of the mangle api.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125360 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
5808ce43f8d7e71f5acacc9ca320268c4f37565a 03-Feb-2011 John McCall <rjmccall@apple.com> More capturing of 'this': implicit member expressions. Getting that
right for anonymous struct/union members led to me discovering some
seemingly broken code in that area of Sema, which I fixed, partly by
changing the representation of member pointer constants so that
IndirectFieldDecls aren't expanded. This led to assorted cleanups with
member pointers in CodeGen, and while I was doing that I saw some random
other things to clean up.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124785 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
0413db4a26b0a1577b75c2979b0eb21f3490d17a 31-Jan-2011 Argyrios Kyrtzidis <akyrtzi@gmail.com> Amazing that there are still issues with the fields of anonymous struct/unions..
Allow taking the address of such a field for a pointer-to-member constant. Fixes rdar://8818236.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124575 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
6ec278d1a354517e20f13a877481453ee7940c78 27-Jan-2011 John McCall <rjmccall@apple.com> Do a proper recursive lookup when deciding whether a class's usual
deallocation function has a two-argument form. Store the result of this
check in new[] and delete[] nodes.

Fixes rdar://problem/8913519



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124373 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
dec0984fce504a39a7f085774fb67cfd9957be58 18-Jan-2011 Jeffrey Yasskin <jyasskin@google.com> Fix warnings found by gcc-4.6, from -Wunused-but-set-variable and
-Wint-to-pointer-cast.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123719 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
14110477887e3dc168ffc6c191e72d705051f99e 13-Jan-2011 Peter Collingbourne <peter@pcc.me.uk> Move name mangling support from CodeGen to AST. In the
process, perform a number of refactorings:

- Move MiscNameMangler member functions to MangleContext
- Remove GlobalDecl dependency from MangleContext
- Make MangleContext abstract and move Itanium/Microsoft functionality
to their own classes/files
- Implement ASTContext::createMangleContext and have CodeGen use it

No (intended) functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123386 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
8a9dc4fcde8583b0c4389d5a43b88820adbd3022 24-Nov-2010 Anders Carlsson <andersca@mac.com> Simplify code.

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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
3030eb82593097502469a8b3fc26112c79c75605 06-Nov-2010 John McCall <rjmccall@apple.com> Simplify the logic for emitting guard variables for template static
data members by delaying the emission of the initializer until after
linkage and visibility have been set on the global. Also, don't
emit a guard unless the variable actually ends up with vague linkage,
and don't use thread-safe statics in any case.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118336 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
112c967bd5c862a0f5d7913aa06700c048807db8 02-Nov-2010 John McCall <rjmccall@apple.com> Ensure that static local variables in function templates inherit the
visibility of their function.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118065 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
92d835a86ac334768d0b75936201e4fea3941c1f 27-Oct-2010 Fariborz Jahanian <fjahanian@apple.com> Patch to provide guard when initializing instances
of static data member of a class template.
Fixes //rdar :// 8562966 and pr8409.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
5cd91b513455fd7753e8815b54f0a49bbca6602d 08-Sep-2010 John McCall <rjmccall@apple.com> Implement ARM static local initialization guards, which are more compact than
Itanium guards and use a slightly different compiled-in API.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113330 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
eede61a83e90f3cb03ef8665b67d648dccd6ce42 02-Sep-2010 Douglas Gregor <dgregor@apple.com> Revert my two IRgen fixes for "bool", then use a far simpler approach
based on ConvertTypeForMem. Thanks to John for pointing out the right
solution.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112838 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
b61e2a328c5c2552b0bb3a8d3c4bc9389f34a321 02-Sep-2010 Douglas Gregor <dgregor@apple.com> Fix a crash involving pointer-to-data-members of boolean type. We were
constructing an LLVM PointerType directly from the "bool"'s LLVM type
(i1), which resulted in unfortunate pointer type i1*. The fix is to
build the LLVM PointerType from the corresponding Clang PointerType,
so that we get i8* in the case of a bool.

John, please review. I also left a FIXME there because we seem to be
dropping "volatile", which would be rather unfortunate.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112819 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
9cb2cee212d708220c52249ceac4cdd9f2b8aeb0 02-Sep-2010 John McCall <rjmccall@apple.com> Simplify some random accesses to the ASTContext from the ABI classes.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112816 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
1e7fe751466ea82665fd21e9162fd7cc9c5f412d 02-Sep-2010 John McCall <rjmccall@apple.com> Abstract IR generation of array cookies into the C++ ABI class and
implement ARM array cookies. Also fix a few unfortunate bugs:
- throwing dtors in deletes prevented the allocation from being deleted
- adding the cookie to the new[] size was not being considered for
overflow (and, more seriously, was screwing up the earlier checks)
- deleting an array via a pointer to array of class type was not
causing any destructors to be run and was passing the unadjusted
pointer to the deallocator
- lots of address-space problems, in case anyone wants to support
free store in a variant address space :)



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112814 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
6c2ab1d578c6cc1f3ddcc948532cd625f1092ef2 31-Aug-2010 John McCall <rjmccall@apple.com> Amusingly, I missed this point of abstraction in all my earlier
member-pointer refactoring: dereferencing a member data pointer.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112640 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
4c40d98ab7acf5f27fa89b17bd8fc0ef7683df37 31-Aug-2010 John McCall <rjmccall@apple.com> Teach IR generation to return 'this' from constructors and destructors
under the ARM ABI.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112588 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
2de56d1d0c3a504ad1529de2677628bdfbb95cd4 25-Aug-2010 John McCall <rjmccall@apple.com> GCC didn't care for my attempt at API compatibility, so brute-force everything
to the new constants.



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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
de719f7131e1ece5c9d6b5ffe21b83286d29f10f 23-Aug-2010 John McCall <rjmccall@apple.com> chandlerc pointed out that ending a line with /\ is not very friendly. :)



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111797 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
0bab0cdab751248ca389a5592bcb70eac5d39260 23-Aug-2010 John McCall <rjmccall@apple.com> Abstract out everything having to do with member pointers into the ABI
class; they should just be completely opaque throughout IR gen now,
although I haven't really audited that.

Fix a bug apparently inherited from gcc-4.2 where we failed to null-check
member data pointers when performing derived-to-base or base-to-derived
conversions on them.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111789 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
f16aa103d3afd42fbca2ab346f191bf745cec092 22-Aug-2010 John McCall <rjmccall@apple.com> Go back to asking CodeGenTypes whether a type is zero-initializable.
Make CGT defer to the ABI on all member pointer types.
This requires giving CGT a handle to the ABI.
It's way easier to make that work if we avoid lazily creating the ABI.
Make it so.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111786 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
e14add4a275318e7a9cafd3a01f79fb15a5a08bc 22-Aug-2010 John McCall <rjmccall@apple.com> Clean up a very silly use of first-class aggregates.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111777 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
d608cdb7c044365cf4e8764ade1e11e99c176078 22-Aug-2010 John McCall <rjmccall@apple.com> Experiment with using first-class aggregates to represent member function
pointers. I find the resulting code to be substantially cleaner, and it
makes it very easy to use the same APIs for data member pointers (which I have
conscientiously avoided here), and it avoids a plethora of potential
inefficiencies due to excessive memory copying, but we'll have to see if it
actually works.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111776 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
e9fd7eb6c67676dc27e84eac429aec4f3be51f26 22-Aug-2010 John McCall <rjmccall@apple.com> Extract member function pointer comparison and null comparison into
the ABI code. Implement correct semantics for these on ARM.

I believe this completes the implementation of member function pointers
on ARM.

I think I'm going to switch member function pointers over to be
non-aggregates while I have all this in mind.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111774 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
875ab10245d3bf37252dd822aa1616bb0a391095 22-Aug-2010 John McCall <rjmccall@apple.com> Abstract out member-pointer creation. I'm really unhappy about the current
duplication between the constant and non-constant paths in all of this.

Implement ARM ABI semantics for member pointer constants and conversion.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111772 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
cf2c85e76fdafe7e634810a292321a6c8322483d 22-Aug-2010 John McCall <rjmccall@apple.com> Abstract more member-pointerness out.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111771 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
3023def6bea3af6dbb51eea51f8cb8ea892d26cf 22-Aug-2010 John McCall <rjmccall@apple.com> Abstract out member-pointer conversions.

Pretty much everything having to do with member pointers is ABI-specific.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111770 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
babc9a9ecc3fbc04edaac5a1f4fb3e869815b25c 22-Aug-2010 John McCall <rjmccall@apple.com> Implement the call parts of the member-function-pointer ARM C++ ABI.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111766 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
93d557bc1867b7d7b102f87290194b4be7932c92 22-Aug-2010 John McCall <rjmccall@apple.com> Extract calls to method pointers out as an ABI routine.
No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111752 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7 22-Aug-2010 John McCall <rjmccall@apple.com> The ARM C++ ABI is sufficiently different from the Itanium C++ ABI that
it deserves its own enumerator. Obviously the implementations should
closely follow the Itanium ABI except in cases of divergence.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111749 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
071cc7deffad608165b1ddd5263e8bf181861520 16-Aug-2010 Charles Davis <cdavis@mines.edu> Implement support for member pointers under the Microsoft C++ ABI in the
AST library.

This also adds infrastructure for supporting multiple C++ ABIs in the AST.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111117 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/CodeGen/ItaniumCXXABI.cpp
3a811f1f4286ee3fd0c563c1cfe623956f3caa24 25-May-2010 Charles Davis <cdavis@mines.edu> IRgen: Add a stub class for generating ABI-specific C++ code.

This class only supports name mangling (which is apparently used during C/ObjC
codegen). For now only the Itanium C++ ABI is supported. Patches to add a
second C++ ABI are forthcoming.


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/external/clang/lib/CodeGen/ItaniumCXXABI.cpp